Boulenges chronograph for the determination of the velocity of projectiles Boulenges chronograph for the determination of the velocity of projectiles Boulenges chronograph for the determination of the velocity of projectiles, with zinc tubes for records Object Number: 1887-27 Pt1 type: instrument component and chronograph
Additional zinc tubes for Bouleges chronograph for the determination of the velocity of projectiles Additional zinc tubes for Bouleges chronograph for the determination of the velocity of projectiles Additional zinc tubes for Bouleges chronograph for the determination of the velocity of projectiles Object Number: 1887-27 Pt2 type: instrument component and chronograph
Illustration of Boulenges chronograph Illustration of Boulenges chronograph Illustration of Boulenges chronograph for the determination of the velocity of projectiles, with zinc tubes for records Measurements: overall: 445 mm x 400 mm Object Number: 1887-27 Pt3 type: illustration